Requesting an octave down effect but only affecting a certain octave range, for example, just the bottom 2 strings have octave down to play basslines, and the other 4 strings can play chords. Would be helpful for situations without a bassist! The Boss OC-3 has polyphonic mode which achieves this.
Thanks
It all depends on the guitar you're playing. What you request is only possible with a guitar which is equipped with Piezo-Pu's, where each string has it's own PU.
Good point. How would the KPA differentiate a "D" played on the 5th fret of the 5th string vs the open 4th string?
It couldn't. Without a hex pickup you would have to do it based purely on pitch.
Sorry, I wasn't clear, I'm just after a particular pitch range, (using strings was a bad example as opposed to a particular octave,) to only be affected. The Boss OC-3 does exactly what I'm after. https://www.youtube.com/watch?v=8EUsDB42bAs around 2:30 shows this.
